20781144

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:174

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41426856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 47, 54, 69, 72, 89, 92, 94, 108, 138, 141, 178, 184, 188, 207, 216, 267, 276, 282, 356, 376, 414, 423, 534, 552, 564, 621, 712, 801, 828, 846, 1068, 1081, 1128, 1242, 1269, 1602, 1656, 1692, 2047, 2136, 2162, 2403, 2484, 2538, 3204, 3243, 3384, 4094, 4183, 4324, 4806, 4968, 5076, 6141, 6408, 6486, 8188, 8366, 8648, 9612, 9729, 10152, 12282, 12549, 12972, 16376, 16732, 18423, 19224, 19458, 24564, 25098, 25944, 29187, 33464, 36846, 37647, 38916, 49128, 50196, 55269, 58374, 73692, 75294, 77832, 96209, 100392, 110538, 112941, 116748, 147384, 150588, 192418, 221076, 225882, 233496, 288627, 301176, 384836, 442152, 451764, 577254, 769672, 865881, 903528, 1154508, 1731762, 2309016, 2597643, 3463524, 5195286, 6927048, 10390572, 20781144]

約数ペア:

[(1, 20781144), (2, 10390572), (3, 6927048), (4, 5195286), (6, 3463524), (8, 2597643), (9, 2309016), (12, 1731762), (18, 1154508), (23, 903528), (24, 865881), (27, 769672), (36, 577254), (46, 451764), (47, 442152), (54, 384836), (69, 301176), (72, 288627), (89, 233496), (92, 225882), (94, 221076), (108, 192418), (138, 150588), (141, 147384), (178, 116748), (184, 112941), (188, 110538), (207, 100392), (216, 96209), (267, 77832), (276, 75294), (282, 73692), (356, 58374), (376, 55269), (414, 50196), (423, 49128), (534, 38916), (552, 37647), (564, 36846), (621, 33464), (712, 29187), (801, 25944), (828, 25098), (846, 24564), (1068, 19458), (1081, 19224), (1128, 18423), (1242, 16732), (1269, 16376), (1602, 12972), (1656, 12549), (1692, 12282), (2047, 10152), (2136, 9729), (2162, 9612), (2403, 8648), (2484, 8366), (2538, 8188), (3204, 6486), (3243, 6408), (3384, 6141), (4094, 5076), (4183, 4968), (4324, 4806)]